Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Stepping into December, Heath observes a temperature decline, with the average high falling from November's chilly 43.7°F (6.5°C) to a wintry 32.9°F (0.5°C). In December, Heath experiences an average nighttime temperature of 22.1°F (-5.5°C).Humidity
In Heath, the average relative humidity in December is 84%.Rainfall
In December, the rain falls for 12 days. Throughout December, 3.39" (86mm) of precipitation is accumulated. In Heath, during the entire year, the rain falls for 166.5 days and collects up to 35.12" (892mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Heath, in December, snow falls for 9.9 days, with typically accumulated 6.42" (163mm) of snow. In Heath, Massachusetts, during the entire year, snow falls for 57.9 days and aggregates up to 35.16" (893mm) of snow.Daylight
The month with the shortest days in Heath is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 4:18 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:27 pm EST.
Sunshine
In December, the average sunshine is 4.2h.UV index
February and December, with an average maximum UV index of 1, are months with the lowest UV index in Heath, Massachusetts. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
How cold is it in Heath in December?
What is the average humidity in December in Heath?
How much does it rain in Heath in December?
How many days does it snow in December in Heath?
What is the month with the shortest days in Heath?
How many hours of daylight does Heath have in December?
When is the sunrise / sunset in December in Heath?
How long on average sun shines in December in Heath?
What is the month with the lowest UV index in Heath?
What is the UV index intensity in December in Heath?
Average temperature in December
Heath, MA
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in December
Heath, MA
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Heath, MA
- Average wind speed in December: 8.5mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Heath, MA
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Heath, MA
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is October (3.58").
The driest months (with the least rainfall) are March and September (2.6").
Average rainfall days in December
Heath, MA
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in December
Heath, MA
- Average snowfall in December: 6.42"
The month with the highest snowfall is February (9.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Heath, MA
- Average snowfall days in December: 9.9 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heath, MA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Heath, MA
- Average sunshine days in December: 12.9 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in December
Heath, MA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in December
Heath, MA
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Heath, MA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Heath, Massachusetts, USA
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